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137114
2013 Feb 11
0
[LLVMdev] Is there any llvm neon intrinsic that maps to vmla.f32 instruction ?
...by default and let the user enable
when necessary. I'll let Bob follow up on that, since I don't know what
benchmarks he used.
cheers,
--renato
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2013 Feb 11
3
[LLVMdev] Is there any llvm neon intrinsic that maps to vmla.f32 instruction ?
Hi Renato,
Indeed problem is with generation of vmla.f64. Affected benchmark is MILC from SPEC 2006 suite and disabling vmlx forwarding gives a 10% speed-up on complete benchmark execution ! So it is worth a try. Now going back to vmla generation through LLMV intrinsic usage. I've looked at .td file and it seems to me that when there is a "pattern" to generate instruction, no